Results 171 to 180 of about 21,856 (262)

Oxygen Ion Percentage Inferred From the Cutoff Frequencies of Ionospheric ELF Hiss Emissions

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract The lower cutoff frequency of hiss emissions observed in the ionosphere is controlled by local plasma composition and density. This study identifies 6,340 ionospheric hiss wave events based on observations from the China Seismo‐Electromagnetic Satellite (CSES‐01) from 1 August 2018 to 31 July 2020.
Bin He, Wenlong Liu, Jiangzhao Ai, Dianjun Zhang, Zeren Zhima, Theodore E. Sarris, Li Zeng, Zhao Zhang, Dapeng Liu   +8 more
wiley   +1 more source

Noise Modeling of the Overhauser Magnetometer. [PDF]

Sensors (Basel)
Gong X, Zhang S, Chen S.
europepmc   +1 more source

Structured Energy Conversion in Kelvin‐Helmholtz Instability

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract We present quantitative investigations of the energy conversion pathways—electromagnetic ϵEM $\left({{\epsilon}}^{EM}\right)$, fluid flow ϵf $\left({{\epsilon}}^{f}\right)$, and particle thermal ϵth $\left({{\epsilon}}^{th}\right)$ energies—within the Kelvin‐Helmholtz instability (KHI) observed by the Magnetospheric Multiscale mission. We find
Kyunghwan Dokgo, Kyoung‐Joo Hwang, Eunjin Choi, James L. Burch, Rungployphan Kieokaew   +4 more
wiley   +1 more source

InclusiveHAR: A smartphone-based dataset for human activity recognition across diverse physical abilities. [PDF]

Data Brief
Kamel Tabbakh SR, Naeimi I, Naghavi K, Majidi Nasab F, Ghaffarian M, Nobahari V, Sharifi Moghaddam Kakhki MS, Farrahi Farimani H, Rouhparvar S.   +8 more
europepmc   +1 more source

Statistical Study of Betatron and Fermi Electron Acceleration at Dipolarization Fronts

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Magnetic reconnection jets in Earth's magnetotail are regions of electron heating and acceleration. They are often associated with dipolarization fronts (DFs), which are characterized by sharp increases in the northward magnetic field component Bz ${B}_{z}$.
A. Kolokotronis, D. B. Graham, Yu. V. Khotyaintsev, C. Norgren, K. Steinvall, L. Richard   +5 more
wiley   +1 more source

High-Resolution Atomic Magnetometer-Based Imaging of Integrated Circuits and Batteries. [PDF]

IEEE Trans Instrum Meas
Hunter D, Mrozowski MS, Ingleby SJ, Read TS, McWilliam AP, McGilligan JP, Bauer R, Schwindt PDD, Griffin PF, Riis E.   +9 more
europepmc   +1 more source

Stress‐to‐Light Conversion in an Earth‐Abundant Oxide Semiconductor

Advanced Science, Volume 13, Issue 43, 3 August 2026.
Stress‐to‐light conversion in solids represents a unique photonic functionality, yet it has never been realized in a chemically simple and sustainable material. Here, we show that sustainable semiconductor ZnO exhibits strong near‐infrared (NIR) luminescence under elastic stress when defect‐engineered to stabilize the p‐type state.
Tomoki Uchiyama, Koki Otonari, Reona Omori, Guangfa Yang, Eiji Nishibori, Ying Chen, Xu‐Guang Zheng, Chao‐Nan Xu   +7 more
wiley   +1 more source

Waveform cross-correlation analysis and magnitude estimation for the 1887 Ligurian earthquake determined from magnetogram recordings. [PDF]

Sci Rep
Tarchini G, Parolai S, Spallarossa D, Sandron D.   +3 more
europepmc   +1 more source

Altered Evening Aperiodic Activity and Microstate Dynamics in Insomnia Disorder: An OPM MEG Study

CNS Neuroscience &Therapeutics, Volume 32, Issue 8, August 2026.
Using wearable OPM‐MEG, this study characterized evening and morning resting state neurophysiology in insomnia disorder. A flatter evening aperiodic spectral exponent suggested relatively elevated cortical excitability, alongside altered microstate dynamics involving putative limbic and sensorimotor network states.
Feng Cui, Kejia Hu, Hui Zeng, Yang Wang, Xi Wang, Haiting Liu, Tangfen Wang, Yan Chang, Xiaodong Yang, Tao Hu, Tianxiao Shen, Jianbing Zhu, Jian Zheng, Donghua Pan   +13 more
wiley   +1 more source

Efficient Dataset Creation for MEMS-Based Magnetic Sensor Systems in Intelligent Transportation Applications. [PDF]

Sensors (Basel)
Hodoň M, Šarafín P, Formanek L, Kociánová A.   +3 more
europepmc   +1 more source